First, the Prudential (Guaranty) Building in Buffalo, New York. Completed in 1896. Sullivan designed it together with Dankmar Adler.

The Wainwright Building, St Louis, Missouri (completed 1891). Also with Adler. Steel skeleton, brick walls, terracotta ornaments:

The Sullivan Center, formerly the Carson, Pirie, Scott and Company Store (1899), a solo project by Sullivan.

Good night.
MFBB.